Reduce gain of IRs (#11)

sdatkinson · Mar 19, 2023 · 91a2bdb · 91a2bdb
1 parent 9a3f28c
commit 91a2bdb
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/dsp/ImpulseResponse.cpp b/dsp/ImpulseResponse.cpp
@@ -63,7 +63,11 @@ void dsp::ImpulseResponse::_SetWeights(const double sampleRate) {
   // Simple implementation w/ no resample...
   const size_t irLength = std::min(this->mResampled.size(), this->mMaxLength);
   this->mWeight.resize(irLength);
+  // Gain reduction.
+  // https://github.com/sdatkinson/NeuralAmpModelerPlugin/issues/100#issuecomment-1455273839
+  // Add sample rate-dependence
+  const float gain = pow(10, -18 * 0.05) * 48000/sampleRate;
   for (size_t i = 0, j = irLength - 1; i < irLength; i++, j--)
-    this->mWeight[j] = this->mResampled[i];
+    this->mWeight[j] = gain * this->mResampled[i];
   this->mHistoryRequired = irLength - 1;
 }